/*

 * Copyright (c) 2017-2018, FastDev 刘强 (fastdev@163.com).

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package of.hotswapinject.injection;

import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.JSRInlinerAdapter;

public class MethodHookClassVisitor extends ClassVisitor {
    private IMethodHook methodHook = null;
    public MethodHookClassVisitor(IMethodHook methodHook, ClassVisitor cv) {
        super(Opcodes.ASM5, cv);
        this.methodHook = methodHook;
    }


    @Override
    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
        MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
        if (methodHook.computeFrames()) {
            mv = new JSRInlinerAdapter(mv, access, name, desc, signature, exceptions);
        }
        MethodVisitor hmv = methodHook.hook(access, name, desc, signature, exceptions, mv);
        return hmv;
    }
}
